CBT Labs is where we share the tools, apps, bots, and scripts we actually use and build. Some are for clients, some are for fun, all of them solve a real problem.
CBT LABS
We fix computers. We also build things.
Ayin
Discord bot monitoring home media infrastructure
Discord
Linux
Plex
Python
Raspberry Pi
Ayin
LiveAyin is a Discord bot running on a Raspberry Pi 4 (Dabar) that keeps an eye on the home media library setup. Disk space, library status, temperature alerts, media requests — all from Discord, no VPN required. Dry personality, always watching. Designed around the Watcher from Horizon Zero Dawn.
Tech Stack
Discord
Linux
Plex
Python
Raspberry Pi
Plugin Manager
GUI plugin installer for Roundcube Webmail. Upload, enable, disable, and remove plugins from your browser without SSH access.
Elastic
JavaScript
PHP
Roundcube
Plugin Manager
LiveDrag-and-drop plugin management for Roundcube. Supports .zip and .tar.gz uploads, auto-extraction, config registration, and one-click enable/disable. Reads plugin metadata from docblocks. Includes admin access control, automatic backups before overwriting, and OPcache invalidation. Ships with comprehensive developer documentation covering Elastic theme integration, custom sidebar icons, and an AI prompt template for generating compatible plugins.
Tech Stack
Elastic
JavaScript
PHP
Roundcube
Smart Spam
Client-side spam filtering with rule-based scoring, per-user whitelist/blacklist, and intelligent message search.
Elastic
JavaScript
PHP
Roundcube
Smart Spam
LiveSmart Spam scores incoming messages using header analysis, subject heuristics, reply-to mismatch detection, upstream spam headers, and non-Latin script detection. Features include a one-click Junk/Not Junk toggle with multi-select, manual inbox scanning with configurable limits, automatic blacklist purge, contact-to-whitelist integration, custom spam terms, and a "Find Similar" search that identifies related suspicious messages by domain, subject overlap, sender patterns, and custom term matches.
Tech Stack
Elastic
JavaScript
PHP
Roundcube
Quick Templates
Canned response templates with full HTML support, collapsible categories, and one-click insertion from the Responses menu.
Elastic
HTML
JavaScript
PHP
Roundcube
TinyMCE
Quick Templates
LiveCreate and manage reusable email templates with support for rich HTML (tables, inline styles, images). Templates appear in Roundcube's Responses menu organized by collapsible custom categories. Supports template variables for sender name, recipient, date, and time. Full HTML templates insert via direct iframe DOM write to bypass TinyMCE's content filter. Includes save-from-compose, default template auto-fill for new messages, and a full CRUD settings page. Powers the CBT branded HTML email template set.
Tech Stack
Elastic
HTML
JavaScript
PHP
Roundcube
TinyMCE
Signature Maker
HTML email signatures with a tabbed Visual/HTML editor, live preview, and per-identity defaults.
Elastic
HTML
JavaScript
PHP
Roundcube
TinyMCE
Signature Maker
LiveCreate and manage multiple HTML email signatures with a dual-mode editor: a full TinyMCE WYSIWYG visual editor (fonts, tables, images, colors, alignment) and a raw HTML source code tab. Content syncs between tabs. Per-identity default assignment auto-applies the right signature based on which From address you're composing from, and auto-swaps when you change identities mid-compose. Integrates into Roundcube's native Signature toolbar button with a popup menu for quick switching.
Tech Stack
Elastic
HTML
JavaScript
PHP
Roundcube
TinyMCE
AI Polish
AI-powered email polishing with tone selection, reply chain detection, and side-by-side diff preview.
Anthropic API
Elastic
JavaScript
Ollama
OpenAI
PHP
Roundcube
AI Polish
LiveOne-click email polishing from the compose toolbar. Supports multiple AI providers (Anthropic, OpenAI, Gemini, Ollama) with configurable models, endpoints, and API keys. Detects reply chains and only polishes new content, leaving quoted text untouched. Offers tone presets (Professional, Friendly, Formal, Concise) and shows a side-by-side comparison modal with word count diff before accepting changes. Includes a connection test in Settings.
Tech Stack
Anthropic API
Elastic
JavaScript
Ollama
OpenAI
PHP
Roundcube
Deputy
Discord bot managing a Minecraft Bedrock frontier realm
Discord
Minecraft
Python
Raspberry Pi
Deputy
LiveDeputy runs The Ocho, a Minecraft Bedrock frontier realm. Onboarding, PvP tracking, bounty system, lore submissions, voice ambience, POI maps, weekly awards. He takes the frontier seriously. He has a ledger and everyone who's ever set foot on the server is in it.
Tech Stack
Discord
Minecraft
Python
Raspberry Pi
Kavita Reader
Android app for self-hosted Kavita libraries
Android
API
Kavita
Kotlin
Kavita Reader
LiveKavita Reader is an Android app built for self-hosted Kavita libraries. If you run your own Kavita server and want to read your books and comics from your phone without dealing with a browser, this is it. No cloud, no subscription. Just point it at your server and read.
Tech Stack
Android
API
Kavita
Kotlin
60 Day Unwatched Media Cleanup
Removes media unwatched for 60+ days
Bash
Linux
n8n
Plex
60 Day Unwatched Media Cleanup
LiveAn n8n workflow that monitors the Plex library for content that hasn't been watched in over 60 days and automatically removes it. Keeps disk usage under control on the HTPC without having to manually audit the library.
Tech Stack
Bash
Linux
n8n
Plex
Contract and Quote Automation
Automated contract and quote pipeline for CBT client intake
API
Docker
DocuSeal
Invoice Ninja
n8n
SMTP
Contract and Quote Automation
LiveClient submits the intake form, Invoice Ninja creates the quote, DocuSeal generates the contract, a branded signing email goes out. Zero manual steps. Routes to the correct contract template based on service type with deposit calculations and threshold guards. It just runs.
Tech Stack
API
Docker
DocuSeal
Invoice Ninja
n8n
SMTP
Daily System Backup
Automated daily backup of all Tank VPS data
Bash
Docker
Linux
Daily System Backup
LiveA Bash script that runs nightly backups of all critical data on the Tank VPS — Docker volumes, configuration files, databases, and certificates. Compressed and rotated with retention policies to prevent runaway disk usage.
Tech Stack
Bash
Docker
Linux
Disk Usage Monitor
Automated disk space monitoring and alerting
Bash
Linux
SMTP
Disk Usage Monitor
LiveA Bash script running on the Tank VPS that monitors disk usage across all partitions and sends alerts when thresholds are exceeded. Prevents the kind of silent disk-full failures that take down self-hosted services.
Tech Stack
Bash
Linux
SMTP
Plex Library Junk Cleanup
Automated cleanup of orphaned media files
Bash
Linux
n8n
Plex
Plex Library Junk Cleanup
LiveAn n8n workflow that scans the Plex media library for orphaned files, incomplete downloads, sample clips, and other junk that accumulates over time. Keeps the library clean without manual intervention.
Tech Stack
Bash
Linux
n8n
Plex
Tank Service Manager
Central management script for all Tank VPS services
Bash
Docker
Linux
Tank Service Manager
LiveA Bash utility for managing all services running on the Tank VPS. Start, stop, restart, and check the status of Docker containers, n8n, Invoice Ninja, DocuSeal, and other self-hosted services from a single menu-driven interface.
Tech Stack
Bash
Docker
Linux
Sefer License Server
WooCommerce add-on that powers the licensing backend for Sefer.
PHP
REST API
SMTP
WooCommerce
WordPress
Sefer License Server
TestingWooCommerce add-on that powers the licensing backend for Sefer. Generates HMAC-SHA256 license keys on purchase, validates them via REST API, and manages activations per-site. Includes a full admin panel with status filtering, manual key generation for comps and giveaways, one-click revoke/reactivate, resend email, and built-in SMTP configuration with test connection tooling. Keys auto-deliver on the thank-you page, in order emails, and under My Account.
Tech Stack
PHP
REST API
SMTP
WooCommerce
WordPress
Sefer
Portfolio showcase plugin for IT professionals
CSS
JavaScript
PHP
REST API
WooCommerce
WordPress
Sefer
TestingWordPress portfolio plugin built for IT pros, sysadmins, and devs who want to showcase their projects without fighting a page builder. Custom post type with click-to-expand modals, drag-and-drop sorting, stat badges, hero images, schema markup, and a built-in license system. Self-hosts Font Awesome 6 to work behind strict CSP headers out of the box. Free tier gets you started — license unlocks the full toolkit.
Tech Stack
CSS
JavaScript
PHP
REST API
WooCommerce
WordPress
Shomer
Home hub and ambient photo display
Linux
Python
Raspberry Pi
Shomer
DevelopmentShomer is a home hub that runs across three services and defaults to a photo display when nothing else is going on. Currently in active development.
Tech Stack
Linux
Python
Raspberry Pi
CBT Sitebuilder
Automated Virtualmin hosting provisioned on purchase
API
Bash
PHP
Virtualmin
WooCommerce
WordPress
CBT Sitebuilder
TestingA WooCommerce-integrated system that automatically provisions a Virtualmin virtual server when a client purchases a hosting plan. Handles domain setup, user creation, and server space allocation with zero manual intervention from order to live site.
Tech Stack
API
Bash
PHP
Virtualmin
WooCommerce
WordPress
Cheshbon
Expense tracker built for truckers
Android
API
Kotlin
PHP
Cheshbon
PlannedA mobile app and web dashboard for over-the-road truckers to track per diem, fuel, maintenance, tolls, and other deductible expenses. Designed to simplify tax season and give drivers a clear picture of where their money goes. App-first with a companion web GUI.
Tech Stack
Android
API
Kotlin
PHP
Frontier Map
Interactive map for The Ocho Minecraft realm
JavaScript
Minecraft
Frontier Map
PlannedAn interactive web-based map for The Ocho Minecraft Bedrock frontier realm. POI markers and territory boundaries. Currently in planning.
Tech Stack
JavaScript
Minecraft
Pantry App
Kitchen inventory and meal planning app — currently in design
Android
Kotlin
Pantry App
PlannedA kitchen pantry tracker and meal planning app. Scan or manually add items, track expiration dates, and plan meals around what you already have. Currently in the design phase.
Tech Stack
Android
Kotlin
MORE IN THE LAB
More tools in progress. CBT Labs gets a new project every time something gets annoying enough to fix.